Home / 87,699.03-131,562.27-28,520.83

Finding the Fourth Proportional to 87,699.03, 131,562.27 and 28,520.83

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Solution

The fourth proportional to 87,699.03, 131,562.27 and 28,520.83 is: 42,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,699.03 : 131,562.27 = 28,520.83 : x
  2. Step 2: Convert to fraction form
    87,699.03/131,562.27 = 28,520.83/x
  3. Step 3: Cross multiply
    87,699.03x = 131,562.27 × 28,520.83
  4. Step 4: Simplify right side
    87,699.03x = 3,752,265,137.08
  5. Step 5: Solve for x
    x = 3,752,265,137.08/87,699.03
  6. Step 6: Final answer
    x = 42,785.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.